<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
 <head>
  <meta http-equiv="content-type" content="text/html; charset=UTF-8">
  <title>Sets the regular expression flags.</title>

 </head>
 <body><div class="manualnavbar" style="text-align: center;">
 <div class="prev" style="text-align: left; float: left;"><a href="regexiterator.setmode.html">RegexIterator::setMode</a></div>
 <div class="next" style="text-align: right; float: right;"><a href="spl.interfaces.html">接口</a></div>
 <div class="up"><a href="class.regexiterator.html">RegexIterator</a></div>
 <div class="home"><a href="index.html">PHP Manual</a></div>
</div><hr /><div id="regexiterator.setpregflags" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">RegexIterator::setPregFlags</h1>
  <p class="verinfo">(PHP 5 &gt;= 5.2.0)</p><p class="refpurpose"><span class="refname">RegexIterator::setPregFlags</span> &mdash; <span class="dc-title">Sets the regular expression flags.</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-regexiterator.setpregflags-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="modifier">public</span> <span class="type"><span class="type void">void</span></span> <span class="methodname"><strong>RegexIterator::setPregFlags</strong></span>
    ( <span class="methodparam"><span class="type">int</span> <code class="parameter">$preg_flags</code></span>
   )</div>

  <p class="para rdfs-comment">
   Sets the regular expression flags.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-regexiterator.setpregflags-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    
     <dt>
<em><code class="parameter">preg_flags</code></em></dt>

     <dd>

      <p class="para">
       The regular expression flags. See <span class="methodname"><a href="regexiterator.construct.html" class="methodname">RegexIterator::__construct()</a></span>
       for an overview of available flags.
      </p>
     </dd>

    
   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-regexiterator.setpregflags-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   没有返回值。
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-regexiterator.setpregflags-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="regexiterator.setpregflags.example.basic">
    <p><strong>Example #1 <span class="function"><strong>RegexIterator::setPregFlags()</strong></span> example</strong></p>
    <div class="example-contents"><p>
      Creates a new RegexIterator that filters all entries with where the array key starts with &#039;test&#039;.
    </p></div>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$test&nbsp;</span><span style="color: #007700">=&nbsp;array&nbsp;(</span><span style="color: #DD0000">'test&nbsp;1'</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">'another&nbsp;test'</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">'test&nbsp;123'</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$arrayIterator&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;</span><span style="color: #0000BB">ArrayIterator</span><span style="color: #007700">(</span><span style="color: #0000BB">$test</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$regexIterator&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;</span><span style="color: #0000BB">RegexIterator</span><span style="color: #007700">(</span><span style="color: #0000BB">$arrayIterator</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">'/^test/'</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">RegexIterator</span><span style="color: #007700">::</span><span style="color: #0000BB">GET_MATCH</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">$regexIterator</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">setPregFlags</span><span style="color: #007700">(</span><span style="color: #0000BB">PREG_OFFSET_CAPTURE</span><span style="color: #007700">);<br /><br />foreach&nbsp;(</span><span style="color: #0000BB">$regexIterator&nbsp;</span><span style="color: #007700">as&nbsp;</span><span style="color: #0000BB">$key&nbsp;</span><span style="color: #007700">=&gt;&nbsp;</span><span style="color: #0000BB">$value</span><span style="color: #007700">)&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$value</span><span style="color: #007700">);<br />}<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
    </div>

    <div class="example-contents"><p>以上例程的输出类似于：</p></div>
    <div class="example-contents screen">
<div class="cdata"><pre>
array(1) {
  [0]=&gt;
  array(2) {
    [0]=&gt;
    string(4) &quot;test&quot;
    [1]=&gt;
    int(0)
  }
}
array(1) {
  [0]=&gt;
  array(2) {
    [0]=&gt;
    string(4) &quot;test&quot;
    [1]=&gt;
    int(0)
  }
}
</pre></div>
    </div>
   </div>
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-regexiterator.setpregflags-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="methodname"><a href="regexiterator.getpregflags.html" class="methodname" rel="rdfs-seeAlso">RegexIterator::getPregFlags()</a> - Returns the regular expression flags.</span></li>
   </ul>
  </p>
 </div>

</div><hr /><div class="manualnavbar" style="text-align: center;">
 <div class="prev" style="text-align: left; float: left;"><a href="regexiterator.setmode.html">RegexIterator::setMode</a></div>
 <div class="next" style="text-align: right; float: right;"><a href="spl.interfaces.html">接口</a></div>
 <div class="up"><a href="class.regexiterator.html">RegexIterator</a></div>
 <div class="home"><a href="index.html">PHP Manual</a></div>
</div></body></html>
